CPT® Code 43231

Esophagoscopy, flexible, transoral, with endoscopic ultrasound examination, is a diagnostic procedure that involves the use of a flexible endoscope to visualize the esophagus. The procedure begins with the introduction of the endoscope through the mouth, allowing for direct access to the esophagus. During this examination, various anatomical structures are assessed, including the velopharyngeal closure, the base of the tongue, and the hypopharynx. The motion of the vocal cords is also observed, and the pharyngeal musculature is evaluated for any abnormalities. As the endoscope is advanced to the cricopharyngeus, the patient may be instructed to burp or swallow, which aids in the smooth passage of the scope through this area. The endoscope is then carefully advanced along the entire length of the esophagus until it reaches the gastroesophageal junction, where any abnormalities encountered are meticulously noted. After the initial endoscopic examination, an echoendoscope is introduced to further investigate any identified lesions or abnormalities. This advanced imaging technique utilizes ultrasound to capture detailed images, allowing for the differentiation between intrinsic lesions, which are located within the esophagus, and extrinsic lesions, which originate from outside the esophagus. The evaluation of intrinsic lesions includes determining their extent, whether they are confined to the mucosa or have penetrated into the muscular wall. For extrinsic lesions, the assessment focuses on their relationship to surrounding structures, including the mediastinal space, thoracic organs, and any potential lymph node involvement. The procedure concludes with the production of hard copies of the ultrasound images for further evaluation of the identified abnormalities.